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forked from pool/sysuser-tools

Accepting request 786819 from home:favogt:nobash

- Clean up sysusers2shadow and make it use only /bin/sh
- Don't let busybox adduser create the home directory, it breaks
  permissions of e.g. /sbin (home of daemon)
- Use only /bin/sh in sysusers-generate-pre and the generated code

OBS-URL: https://build.opensuse.org/request/show/786819
OBS-URL: https://build.opensuse.org/package/show/Base:System/sysuser-tools?expand=0&rev=23
This commit is contained in:
Thorsten Kukuk 2020-03-20 11:31:21 +00:00 committed by Git OBS Bridge
parent 81802b4712
commit 54305a4169
3 changed files with 84 additions and 89 deletions

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@ -1,3 +1,11 @@
-------------------------------------------------------------------
Fri Mar 20 10:08:43 UTC 2020 - Fabian Vogt <fvogt@suse.com>
- Clean up sysusers2shadow and make it use only /bin/sh
- Don't let busybox adduser create the home directory, it breaks
permissions of e.g. /sbin (home of daemon)
- Use only /bin/sh in sysusers-generate-pre and the generated code
-------------------------------------------------------------------
Tue Mar 17 10:12:15 UTC 2020 - Fabian Vogt <fvogt@suse.com>

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@ -1,8 +1,8 @@
#!/bin/bash
# pass systemd sysusers config files a as argument to this script.
#!/bin/sh
# pass systemd sysusers config paths as argument to this script.
echo '#!/bin/bash'
echo '#!/bin/sh'
echo 'cat <<"EOF" |'
grep -he '^[ugmr]' "$@"
echo 'EOF'
echo '/usr/sbin/sysusers2shadow || [[ -f /.buildenv ]]'
echo '/usr/sbin/sysusers2shadow || [ -f /.buildenv ]'

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@ -1,95 +1,82 @@
#!/bin/bash
#!/bin/sh
set -eu
while read LINE
# Print the command and run it
run() {
echo "$@"
"$@"
}
# Absolute path to busybox, if found
busybox=
for i in /bin/busybox /usr/bin/busybox; do [ -x "$i" ] && busybox=$i; done
while read arg0 arg1 arg2 arg3 arg4
do
case "$LINE" in
\#*|"")
;;
g*)
eval arr=( $LINE )
ARGUMENTS="${arr[1]}"
if [ ! -z "${arr[2]}" -a "${arr[2]}" != "-" ]; then
ARGUMENTS="-g ${arr[2]} $ARGUMENTS"
case "$arg0" in
g)
ARGUMENTS="${arg1}"
if [ -n "${arg2}" -a "${arg2}" != "-" ]; then
ARGUMENTS="-g ${arg2} $ARGUMENTS"
fi
if [ -x /usr/sbin/groupadd ]; then
echo "groupadd -r $ARGUMENTS"
/usr/bin/getent group "${arr[1]}" >> /dev/null || /usr/sbin/groupadd -r $ARGUMENTS || exit $?
elif [ -x /usr/bin/busybox ]; then
echo "addgroup -S $ARGUMENTS"
/usr/bin/getent group "${arr[1]}" >> /dev/null || /usr/bin/busybox addgroup -S $ARGUMENTS || exit $?
elif [ -x /bin/busybox ]; then
echo "addgroup -S $ARGUMENTS"
/usr/bin/getent group "${arr[1]}" >> /dev/null || /bin/busybox addgroup -S $ARGUMENTS || exit $?
if ! /usr/bin/getent group "${arg1}" >> /dev/null; then
if [ -x "/usr/sbin/groupadd" ]; then
run /usr/sbin/groupadd -r $ARGUMENTS
elif [ -x "$busybox" ]; then
run $busybox addgroup -S $ARGUMENTS
else
echo "ERROR: neither groupadd nor busybox found!"
exit 1
fi
;;
u*)
eval arr=( $LINE )
ARGUMENTS="${arr[1]}"
if [ ! -z "${arr[2]}" -a "${arr[2]}" != "-" ]; then
ARGUMENTS="-u ${arr[2]} $ARGUMENTS"
fi
if [ ! -z "${arr[4]}" -a "${arr[4]}" != "-" ]; then
ARGUMENTS="-d ${arr[4]} $ARGUMENTS"
;;
u)
ARGUMENTS="${arg1}"
if [ -n "${arg2}" ] && [ "${arg2}" != "-" ]; then
ARGUMENTS="-u ${arg2} $ARGUMENTS"
fi
if [ -n "${arg4}" ] && [ "${arg4}" != "-" ]; then
ARGUMENTS="-d ${arg4} $ARGUMENTS"
else
ARGUMENTS="-d / $ARGUMENTS"
fi
if [ -x /usr/sbin/useradd ]; then
if ! /usr/bin/getent passwd "${arg1}" >> /dev/null; then
# this is useradd/shadow specific
/usr/bin/getent group ${arr[1]} >> /dev/null
if [ $? -eq 0 ]; then
ARGUMENTS="-g ${arr[1]} $ARGUMENTS"
else
ARGUMENTS="-U $ARGUMENTS"
ARGUMENTS="-g ${arg1} $ARGUMENTS"
/usr/bin/getent group "${arg1}" >> /dev/null || ARGUMENTS="-U $ARGUMENTS"
run /usr/sbin/useradd -r -s /sbin/nologin -c "${arg3}" $ARGUMENTS
fi
echo "useradd -r -s /sbin/nologin -c \"${arr[3]}\" $ARGUMENTS"
/usr/bin/getent passwd ${arr[1]} >> /dev/null || /usr/sbin/useradd -r -s /sbin/nologin -c "${arr[3]}" $ARGUMENTS || exit $?
elif [ -x /usr/bin/busybox ]; then
/usr/bin/getent group ${arr[1]} >> /dev/null
if [ $? -ne 0 ]; then
/usr/bin/busybox addgroup ${arr[1]}
elif [ -x "$busybox" ]; then
/usr/bin/getent group "${arg1}" >> /dev/null || $busybox addgroup "${arg1}"
if ! /usr/bin/getent passwd ${arg1} >> /dev/null; then
ARGUMENTS="$(echo -G ${arg1} $ARGUMENTS | sed -e 's|-d|-h|g' -e 's|-g|-G|g')"
run $busybox adduser -S -H -s /sbin/nologin -g "${arg3}" $ARGUMENTS
fi
ARGUMENTS="-G ${arr[1]} $ARGUMENTS"
ARGUMENTS=`echo $ARGUMENTS | sed -e 's|-d|-h|g' -e 's|-g|-G|g'`
echo "adduser -S -s /sbin/nologin -g \"${arr[3]}\" $ARGUMENTS"
/usr/bin/getent passwd ${arr[1]} >> /dev/null || /usr/bin/busybox adduser -S -s /sbin/nologin -g "${arr[3]}" $ARGUMENTS || exit $?
elif [ -x /bin/busybox ]; then
/usr/bin/getent group ${arr[1]} >> /dev/null
if [ $? -ne 0 ]; then
/bin/busybox addgroup ${arr[1]}
fi
ARGUMENTS="-G ${arr[1]} $ARGUMENTS"
ARGUMENTS=`echo $ARGUMENTS | sed -e 's|-d|-h|g' -e 's|-g|-G|g'`
echo "adduser -S -s /sbin/nologin -g \"${arr[3]}\" $ARGUMENTS"
/usr/bin/getent passwd ${arr[1]} >> /dev/null || /bin/busybox adduser -S -s /sbin/nologin -g "${arr[3]}" $ARGUMENTS || exit $?
else
echo "ERROR: neither useradd nor busybox found!"
exit 1
fi
;;
m*)
eval arr=( $LINE )
m)
if [ -x /usr/sbin/usermod ] ; then
echo "usermod -a -G ${arr[2]} ${arr[1]}"
/usr/sbin/usermod -a -G ${arr[2]} ${arr[1]} || exit $?
elif [ -x /usr/bin/busybox ]; then
echo "addgroup ${arr[1]} ${arr[2]}"
/usr/bin/busybox addgroup ${arr[1]} ${arr[2]} || exit $?
elif [ -x /bin/busybox ]; then
echo "addgroup ${arr[1]} ${arr[2]}"
/bin/busybox addgroup ${arr[1]} ${arr[2]} || exit $?
run /usr/sbin/usermod -a -G ${arg2} ${arg1}
elif [ -x "$busybox" ]; then
run $busybox addgroup ${arg1} ${arg2}
else
echo "ERROR: neither usermod nor busybox found!"
exit 1
fi
;;
r*)
echo "range option ignored: \"$LINE\""
r)
echo "range option ignored: \"$arg0 $arg1 $arg2 $arg3\""
;;
*)
echo "Syntax Error: \"$LINE\""
echo "Syntax Error: \"$arg0\""
exit 1
;;
esac